研究目的
To analyze the field propagation inside a six-port Riblet-type directional coupler using cavity modeling technique.
研究成果
The field propagation inside a six-port Riblet-type directional coupler was successfully analyzed using cavity modeling technique. The theoretical scattering parameter data agreed well with CST Microwave Studio simulation data and measured data, verifying the analysis. The coupler demonstrated two isolated ports with approximately 25 dB broadband isolation coefficient and three coupled ports with broadband 4.8 dB coupling coefficient.
研究不足
The theoretical model does not account for losses in the resonant cavities present in the input–output arms of the real structure, leading to slight deviations in the scattering parameter data.
